Valve-controlling means



Dec. 1, 1925- l',5.63,744

K. J. E. HESSELMAN VALVE CONTROLLING MEANS Filed Sept. 1925 PatentedDec. 1, 1925.

y UNITED STATES 1,563,744 PATENT, OFFICE.

KNUT JONAS unis HESSELMAN, F sALTsJo-sronANeEn', SWEDEN.

VALVE-CONTROLLING MEANS.

' Application filed September 9, 1925. Serial No. 55,284.

. To all whom it-mag concern:

Be it known that I, Know Jonas Ennis HEssm-MAN, a citizen of the Kingdomof which engage each other loosely alternately; at their inner and outeredges, said column being closed at its one end by a disc having achannel formed in it in communication 1 with the interior of the column,said disc being formed integral with a member to guide the discslaterally and to carry means to hold the discs assembled in longitudinaldirection, and loose means to close the end of the column opposite tosaid integral enddisc.

According to the present invention the discs are formedwithout apermanent guidf ing member and instead thereof a loose guiding member istemporarily used to prevent the discsfrom lateral relative displacementwhile the discs are being 'assembled and until after theinitialcompression thereof has 'been applied thereto, whereupon theguiding member is withdrawn. f 1 In the accompanying drawin twoem'bodiments of the invention are i lustrated-f Fig.1 being a longitudinalsection of one embodiment, and Fig. 2 a longitudinal section of theother embodiment.

Figs. 3 and 4 show longitudinal sections of modified types of flexiblediscs. In the embodiment shown in Fig. 1 the valve casing 12 is formedwith a passage- 23 for supplying fuel under pressure. Furthermore, thecasing 12 is rovided with a plug 13 to close one end of t e casing, saidplug having a fuel outlet passage 14 extending therethrough, a valveseat 15 at the up permost end of said passage and a fuel nozzle 16'atthe lowermost end thereof. Resting on the valve seat 15 is a plate valve19 formed centrally in the upper side of which is a recess 20. The'platevalve 19 supports copending application Serial No.

a plurality of annular flexible discs 5 placed 'one above another so asto form a column having a central through-extending aperture,thediameter of said aperture being equal to that of the recess formed inthe upper surface of the plate valve 19. The discs 5 are shown for.convenience as constructed in accordance with'Fig. 3 of thespecification of my aforesaid application for patent, but may take otherforms, if desired.

The discs are held in a suitably compressed state between the valveplate 19and the threaded cover-24 of the valve casing, Said cover 21 isformed with aa longitudi nally extendingmasage 25 of the same diameter'as that of the apertures of the discs 5. This passage 25 and theapertures of the discs 5 are adapted to receive a bolt 27, and

the recess 20 in the upper surface of the plate valve 19 isadaptedtoreceive the lower end of said bolt. The bolt 27is provided'atits top witha head 28 having any appropriate form of operating means, asa handle 29.

Formed on the under side of .the head'28 is i .a projetcion or key 30 toengage a corre sponding. slot formed in thetop surface of the cover 24.I

In assembling the structure just described the members 242 and 5 aredisposed on the bolt 27, while thelatter is held with the head 28 down,whereupon theplate valve 19is placed on the end of the bolt so that saidend will on,-

gagegth e recess 20 formed in the plate 19'.

The valve casing is thereupon placed over the members while held' ithusassembled, whereupon the cover 24 is screwed into the casing byuneans ofthe bolt 27, the vprojection 30 of which is in engagement with the slotin the top surface of the cover. This arrangement ensures that the covercannot after the members 19, 5 and "24.- are held in proper relativeposition by the bolt '27, which be screwed down into the casing-12 untilposlt-ion is maintained during the whole H screwing down'operation. Bytightening the bolt 27 any'initia'l compression desired may be given tothe discs5. 'The bolt 27 may then be removed, inasmuch as the saidcompression and the pressure exerted by the fuel Will hold the discsassembled sufficiently to prevent any lateral. displacement of the discsrelatively to each other. The passage 25 of the cover 24 for thetemporary reception of the bolt 27 will, after removal of the bolt, forma passage leading from the atmosphere to the interior of the bellows asform by the discs 5 and plate valve 19.

Fig. 2 illustrates "a modification of the structure shown in Fig. 17inorder to facile itate the assembling. In this embodiment the cover 24carries a sleeve 31, screwed thereon,'having at its lower end an inwardflange 32 adapted to support the valve plate 19 and the discs 5 restingthereon. The bolt 27 and its operating means are similar to those inFig. 1, and also in this case the bolt is used for screwing down thecover 24 into. the valve casing 12. In this embodiment the members 19, 5and 24 may be more readily assembled and the bolt brought intoengagement therewith to prevent said mem' bers from relative lateraldisplacement during their insertion into thecasing 12, as well as during"the screwing down of the cover, which last-mentioned operation iseifected inthe manner herein described in connection with Fig 1.; v

While in Figs. 1 and 2 the flexible discs are shown as engaging eachother alternate- 1y attheir inner and outer edges, it is to be notedthat they may contact only at their inner or outer edges. In such casesthe discs ma be so designed as is shown in Figs 3 an 4.

It is to be noted, of course, that while the invention is described andillustrated as applied to a fuel'valve, it may equally well be utilizedfor many other purposes without/departing from the principle of theinvention.

What I claim is:

1. In a fluid pressure operated valve controlling device, a casingadapted to be internally subjected to the fluid pressure, a

setof annular flexible discs adapted to be inserted into said casing soas to loosely engage each other to form a longitudinally flexible hollowcolumn, an imperforate independent end piece at one end of said column,an apertured independent end piece at the opposite end of said column,and means adapted to transiently engage said discs and said end piecesto prevent saidmeinbers from being displaced laterally relatively toeach other during the actions of assembling the device.

2. In a fluid pressure operated valve controlling device, a casing adated to be internally subjected to the fluid pressure, a set of annularflexible discs adapted to be inserted into said casing-so as to looselyengage each other to form a longitudinally flexible hollow column, animperforate independent end piece at one end of said column having arecess formed in its surface adjacent the column, an apertured Ldependent end piece at the opposite end of said column, and a boltadapted to transiently engage the apertures of the disc and the saidlastmentioned and piece and the recess of the said firstmentioned endpiece to snugly'fit therein.

3. In a fluid pressure operated valve controlling device, a casinadaptedto be internally subjected tot e fluid pressure, a

set of annular flexible discs adapted to be inserted into said casing soas to loosely engage each other to form a longitudinally flexible hollowcolumn, an imperforate in- ;dependent end piece at one end of saidcolnmn having a recess formed in its surface adjacent the/column, anapertured independent end piece at the opposite end'of said column,andabolt adapted to transiently engaged the apertures of the disc andthe said lastmentioned end piece and the recem of the said firstmentioned end piece to snugly'fit therein said bolt having means to.facilitate operation thereof.

at. In a fluid pressure operated valve controlling device, acasingadapted to be internally subjected to the fluid pressure, having avalve seat at one end and screw threaded opening at its other end, a setof said, discs and said cover to engage the said recess with its freeend, a handle on said bolt, and means to efiect an engagement betweensaid bolt and said cover to enable the cover to be rotated by rotatingthe bolt.

5. In a fluid pressure operated valve controlling device, a casingadapted to be internally subjected to the fluid pressure having a valveseat at one end and a screw threaded opening at its other end, a set ofannular flexible discs adapted to be inserted into said casing so as toloosely engage each other -to form a longitudinally flexible hollowcolumn, an imperforate end piece at one end of said column havingarecess in its surface adjacent the column, a screwthreaded aperturedcover adapted to be screwed down intosaid casing to maintain the saidcolumn therein, a bolt adapted to be transiently inserted into theapertures of said discs and said cover toengage the said recess with itsfree end, a. handle on said bolt, means to efi'ect an engagement betweensaid bolt and said threaded cover to enable the'cover to be rotated bymeans of the bolt, and means attached to said threaded cover to supportthe imperforate end piece and the annular discs resting thereon.

In testimony whereof I have signed my name.

KNUT JONAS ELIAS HESSELMAN.

